Published 22 Feb, 2021 Way back in 2007, Alec Meer (RPS in peace) played a promising RTS mod for Half-life 2. It s a ton of fun to see the familiar in such a different and well-considered format, he said. But it s very, very early, with a lot of work to go. And a whole lot of work it was - 13 years of it. But over the weekend, Lambda Wars finally launched in full, inviting players to explore the world of Half-life 2 from a new perspective (that is: a strategic top-down one). Lambda Wars is a free standalone mod set in the HL2 universe, and based off of the code for Valve s 2010 top-down shooter, Alien Swarm. It sees players take up the mantle of Resistance commander or Combine overlord in singleplayer, co-op and multiplayer modes, and swaps out the game s first-person battles for real-time strategy skirmishes.